package com.wj.book.controller;

import com.wj.book.constants.Constants;
import com.wj.book.model.*;
import com.wj.book.service.BookService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {
    @Autowired
    private BookService bookService;
    @RequestMapping(value = "/addBook",produces = "application/json")
    public String addBook(BookInfo bookInfo){
        log.info("添加图书，bookInfo:{}",bookInfo);
        if (!StringUtils.hasLength(bookInfo.getBookName())
                || !StringUtils.hasLength(bookInfo.getAuthor())
                || bookInfo.getCount()==0
                || bookInfo.getPrice()==null
                || !StringUtils.hasLength(bookInfo.getPublish())
        ){
            return "参数错误";
        }
        try{
            bookService.insertBook(bookInfo);
        }catch (Exception e){
            return "内部发生错误，请联系管理员";
        }
        return "";
    }
    @RequestMapping("/getListByPage")
    public Result<PageResult<BookInfo>> getListByPage(PageRequest pageRequest, HttpSession session){
        log.info("查询列表信息,pageRequest:{}",pageRequest);
        UserInfo userInfo = (UserInfo) session.getAttribute(Constants.USER_SESSION_KEY);
        if(userInfo==null||userInfo.getId()<1){
            return Result.unlogin();
        }
        if(pageRequest.getCurrentPage()<1){
            return Result.fail("非法参数");
        }
        PageResult<BookInfo> pageResult = bookService.getListByPage(pageRequest);
        return Result.success(pageResult);
    }
    @RequestMapping("/queryBookById")
    public BookInfo queryBookById(Integer bookId){
        log.info("查询图书信息,bookId"+bookId);
        return bookService.queryBookById(bookId);
    }

    @RequestMapping("/updateBook")
    public boolean  updateBook(BookInfo bookInfo){
        log.info("更新图书 updateBook:{}",bookInfo);
        try{
            bookService.updateBook(bookInfo);
        }catch (Exception e){
            log.error("更新图书失败");
            return false;
        }
        return true;
    }
    @RequestMapping("/batchDelete")
    public boolean batchDelete(@RequestParam List<Integer>ids){
      log.info("批量删除数据,ids:{}",ids);
      try {
          Integer result                                                                                                                                                                                                                                                                                                                                      = bookService.batchDelete(ids);
          if(result<=0){
              return false;
          }
          return true;
      }catch (Exception e){
          log.error("批量删除失败，ids:{},e:{}",ids,e);
          return false;
      }
    }

}